Opal and Copper Physical Properties
Tenacity
BrittleWalter Schumann
  
Not Available
  
Solubility
hot salt water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.25
  
Not Available
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
  
Hackly Jagged, torn surfaces, (e.g. fractured metals)., torn surfaces, (e.g. fractured metals).
  
Cleavage
None
  
None
  
Mohs Hardness
5-6.5
  
2.5
  
Chemical Composition
SiO2 · nH2O
  
Cu
  
Opal and Copper Chemical Formula
While comparing Opal and Copper physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Opal and Copper chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Copper- Cu
Opal and Copper Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Copper Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Copper Optical Properties during the identification of gemstone. Specific gravity of Opal is Not Available whereas that of Copper is Not Available.